The VBF Control Ball Valves control hot and chilled water with glycol solutions up to 50% according to VDI2035 in heating, ventilating, and air conditioning (HVAC) systems to provide two-position or modulating functions.
Flow characteristic Port A to AB equal percentage, Port B to AB linear with 20% reduced flow capacity.
Medium type water
Materials cast iron, stem/ball 316 stainless steel
Packing ball Teflon seals, stem EPDM O-rings
Angle of rotation 90 o
Media temp. -30 ... 120 oC
Port connection flanges